It’s surprising that your brother Russian so quickly—he hasn’t lived there very long.A. p

问题补充：

It’s surprising that your brother Russian so quickly—he hasn’t lived there very long.

A. picked up

B. looked up

C. put up

D. made up

答案：

(答案→)A. picked up

B. looked up

C. put up

D. made up

解析：本题考查动词短语辨析。pick up意为“（无意之间、偶然地）学会”；look up意为“（在书籍中）查找”；put up意为“张贴；搭建”；make up意为“构成；编造”。此句句意为：令人惊奇的是，你的弟弟如此快就学会说俄语了——他在那儿生活的时间并不长。根据句意选A。